Hot Wheels Mario Kart Circuit Playset (Costco Membership required) - £39.99 @ Costco

This comes with 4 die-cast cars, cheaper versions come with only 2 cars.

There are a few different variants of this kit, some cheaper and some more expensive. This comes with 4 cars and from what I can see is a decent drop from RRP.

Hot Wheels brings the fast-paced action of the Mario Kart world to life with the ultimate Circuit Track Set, inspired by the iconic video games. Select your racer from one of two of your favourite Mario Kart characters, Mario and Yoshi, to overcome obstacles and challenges. Load karts into the launchers and turn on the booster to launch into action around the track and through the inverted loop! Track set features include lap-counting flags, a booster, shell items to knock off your opponent and more. Pump up challenges by reconfiguring the Mario Kart Circuit Track Set for more racing adventures.

Features:

• Kids ages 3 and up can race friends, just like in the video game, on this power boosted, Hot Wheels Mario Kart track set.
• Kids can race with their favourite characters to overcome challenges -- the first to complete 6 laps wins!
• Makes a great gift for younger fans of the Mario Kart video games, with recognisable features like shells, spinning coins and more.
• Hit the green shell button to force your opponent into the pits!
• The Circuit Track Set includes a Yoshi die-cast kart and a Mario die-cast cart.

Features- Inspired by the iconic Mario Kart video games

- Select your racer from one of two of your favourite Mario Kart characters, Mario and Yoshi

- Hit the green shell button to force your opponent into the pits!

- 3+ Years